I have repaired my own cluster for the "dim shifter"... its not hard if you are familiar with soldering.... the whole took about 30mins including the time it took to remove the cluster and reinstall it... hour tops if you include the time waiting for the soldering iron to heat up and putting stuff away
Presuming you can locate the cracked solder joints for this power problem it should be pretty easy to repair.
with that said, I think that $200 is probably fair for a complete rebuild including new motors... but like the other guys said, not sure its worth that sort of money for a truck so old... but a worthwhile DIY project.